LIMELITE RENOVATING PLASTER

Description Limelite Renovating Plaster is a pre-blended, lightweight and fibre reinforced renovating plaster that controls and manages moisture movement in traditional and damp buildings. Limelite Renovating Plaster works with the fabric of a building, letting walls breathe and provides a quality, durable finish that protects and performs for years to come.

This breathability enables substrate to dry naturally, meaning Limelite Renovating Plaster can provide a fast and effective solution for flood remediation, heritage restoration and in both domestic and commercial properties.

Limelite Renovating Plaster can be used as a rapid drying, easy to apply alternative to traditional lime based plasters without compromising the flexibility and breathability of the substrate. With a drying time of just 24 hours per coat, Limelite Renovating Plaster can be used to dramatically reduce project times where traditional lime materials would take months to dry.

The plaster can be applied to both modern and traditional substrates, including masonry, block, stone and wooden lath.

Uses Limelite Renovating plaster can be used to replace existing lime based plaster or as part of a new plaster system in modern and traditional environments and is an ideal solution for flood damage remediation or floor prevention.

Features • Breathable – can be applied directly to damp walls and substrates • Prevents corrosion of metal fixtures, such as angle beads and lath. • Provides a barrier to salt and efflorescence. • Lightweight – less than half the weight of a sand and cement plaster. • Contributes to the U-Value of the building. • Fibres reduce cracking and crazing. • Reduced condensation • Rapid drying – 24 hours per coat. • Lime content is naturally aseptic, preventing mould growth • Fire resistant – non-combustible to BS476:4

Fire Resistance Limelite Renovating Plaster is a non-combustible product as defined in BS 476 : Part 4, and can be designated Class O in accordance with the requirements of the National Building Regulations for use as a surface finishing material.

Salt Resistance Limelite Renovating Plaster contains salt inhibitors to prevent efflorescence and salt transfer, however on areas with heavy contamination, such as chimney breasts, Limelite Easy-Bond Primer should be used.

Compatibility Limelite Renovating Plaster is compatible with most building materials.

Lime plaster, however, is not compatible with gypsum, and therefore Limelite Renovating Plaster must not be used with gypsum finishing plaster or gypsum plasterboard. Bituminous coatings and traces of gypsum should be removed before plastering.

Typical Performance

| Technical Data | | |--------------------------------|-------| | Dry powder density | 600 kg/m³ | | Density air dried | 800 kg/m³ | | Density oven dried | 725 kg/m³ | | Compressive strength at 28 days| 3.0 N/mm² | | Flexural Strength at 28 days | 1.4 N/mm² | | Modulus of Elasticity | 2,100 N/mm² | | Appearance as supplied | Fine grey powder | | Appearance after application (dried) | Light grey keyed finish | | Thermal conductivity (k) at 0% moisture by volume | 0.13 W/m°C | | Thermal conductivity (k) at 3% moisture by volume | 0.21 W/m°C | | Thermal resistance (R) at 13mm and 3% moisture by volume | 0.058 m² °C/W |

Thermal data above is obtained from CIBSE A3 Guide: Thermal Properties of Building Structures. Technical performance is derived by laboratory testing at 20°C. Typical Coverage

| Application Thickness | Coverage/25Kg | Coverage/Tonne | |-----------------------|--------------|----------------| | 10 mm | 3m² | 120m² | | 20 mm | 1.5m² | 60m² | | 30mm | 1m² | 40m² |

Figures are approximate and do not account for site wastage.

Mixing

For best results Limelite Renovating Plaster should be mixed in a clean mixing vessel using a mechanical mixer such as a slow-speed drill and paddle mixer.

Fill bucket with approximately 12.5 litres of clean water and add 25kg of dry powder to the water and mix for 2-3 minutes until a smooth, homogeneous working consistency is achieved.

Allow to rest for 3 - 5 minutes, then re-mix back to consistency adding small amounts of water if necessary.

Model Specification

Limelite Renovating Plaster is associated with the following NBS clause:

M20 Plastered/Rendered/Roughcast coatings

- 330 PROPRIETARY LIME:SAND

Limelite Renovating Plaster should always be used with a skim coat of Limelite High Impact Finishing Plaster.

Application

Solid substrates – Brick, block, stone etc. Substrates should be cleaned and any loose or friable material removed. Traces of gypsum plaster, bitumen or other materials that could cause a barrier to adhesion must be removed.

Substrates should be primed with Limelite Easy-Bond and the first coat of plaster should be applied once the priming coat is tacky.

The plaster should be applied in coats between 7-15mm and a minimum of 24 hours is required between coats. A suitable horizontal scratch should be applied between each coat for a key.

Once the desired thickness has been achieved Limelite High Impact Finish should be applied as a skim coat. Note that gypsum finishing plasters are not suitable for use with Limelite Renovating Plaster.

Wooden Lath

The lath should be cleaned and repaired to a reasonable condition. An initial coat of approximately 6mm of Limelite Renovating Plaster should be pushed into the lath to create a solid backing. This should then immediately receive a further coat of Limelite Renovating Plaster which should be used to level.

The plaster should receive a suitable horizontal scratch and be left to cure for a minimum of 24 hours before applying Limelite High Impact Finishing Plaster. Note that gypsum finishing plasters are not suitable for use with Limelite Renovating Plaster.

Decoration

Limelite plasters can be decorated 24 hours after application of Limelite High Impact Finish. Paints used must be breathable, such as mineral based or water based paints.

Wallpaper and tiling is not recommended, however, to avoid damaging decorative finishes, the moisture content of the plaster must be checked and deemed suitable by the supplier of the decorative finishes before application.

Quality Control

Limelite products are factory blended, tested and packaged to quality control procedures in accordance with BS EN ISO 9001.

Clean Up & Spillages

Dry powders should be swept up and disposed of in accordance with Local Authority regulations.

Tools and equipment can easily be cleaned using water. Cleaning of tools and equipment should be carried out as soon as possible after application.

Packaging & Storage

Limelite Renovating Plaster is available in nominal 25kg bags palletised and shrink wrapped.

Palletised Limelite Renovating Plaster should be stored in cool dry areas clear of the ground, sheeted or under cover and stacked not more than two pallets high. The product should be used on a first in – first out basis. Shelf life is a minimum of 3 months when properly stored but can be in excess of 6 months subject to temperature and humidity.

Individual bags of Limelite Renovating Plaster should be stored in sealed original packaging in a dry location at temperatures between 5°C and 30°C. Avoid exposure to water, frost or heat - high temperatures and high humidity will lead to a reduced shelf life. Health & Safety

Health and safety advice, which must be followed, can be found on the Material Safety Data Sheet.

Users are advised to wear protective clothing when using Limelite Renovating Plaster including face mask, goggles, gloves and overalls when handling, mixing and applying this product. Skin contact should be avoided and any eye contact should be dealt with promptly by irrigation with clean water.

Information, Prices & Ordering

If you have any questions about choosing the right product for your particular job, or if you are ready to order, please call us on:

03444 63 00 46

Tarmac Building Products Ltd Swains Park Industrial Estate Park Road, Swadlincote Overseal, Derbyshire DE12 6JT

Tel : 03444 63 00 46 Fax : 03443 09 97 03 Email : limelite@tarmacbp.co.uk Web : www.limeliteplaster.co.uk

The information supplied in our literature or given by our employees is based upon extensive knowledge and experience. This information, together with that supplied by our agents or distributors, is given in good faith in order to help you. Our Company policy is one of continuous Research and Development; we therefore reserve the right to update this information at any time without prior notice. We also guarantee the consistent high quality of our products; however, as we have no control over site conditions or the execution of the work, we accept no liability for any loss or damage which may arise as a result thereof. Country specific recommendations, depending on local standards, codes of practice, building regulations or industry guidelines, may affect specific installation recommendations. Any existing intellectual property right must be observed. Tarmac’s standard terms and conditions apply.